|
|
| |
Analysis of Baylor aircraft stationary front flights
| Project Period: | 07/01/2008 - 07/31/2009 |
| Total Budget: | $96,000 |
| Sub-Contractors: | University of Alabama in Huntsville
|
Aircraft measurements of the physical atmosphere made by the Baylor Aztec – winds, temperature, boundary layer heights, humidity – will be compared to model simulations of the flight period. This will be accomplished by sampling the model atmosphere in the same physical space in which the aircraft flew its mission. This will allow direct comparison with the aircraft data. The analyses will also include comparisons with MM5 runs carried out by UAH. If possible, comparisons will be made against other TEXAQS2006 modeling products provided by Texas A&M University (TAMU) and/or the University of Houston (UH). The main concern in SIP modeling for DFW is that models accurately reproduce conditions associated with the front, such as dilution, mixing heights and winds. Specific products will involve analyzing winds in the model compared to aircraft and profiler data as well as surface wind sites in DFW and East Texas for the August 21-22 period. Lagrangian trajectories from the UAH model, the TAMU model, the UH model and the NOAA ARL model will be compared. Specific attention will be paid to developing trajectories into the frontal zone and the length of these trajectories over a several day travel time.
Under this project, detailed analysis of the aircraft data will be carried out, including comparison of the air composition and physical conditions present on either side of the stationary front. Particular focus will be applied to ozone and its precursor species, meteorological conditions including water mixing ratio, and comparison of the observed j(NO2) measured with up- and downward facing filter radiometers.
In addition to the chemical and meteorological analysis of the actual aircraft data, a series of analyses will be carried out to examine the consistency of observations with the previously described Conceptual Model of Extreme Concentration Events (McNider, Nielsen-Gammon and Breitenbach- H012.2004.8HRA).
The Baylor aircraft made measurements of ozone, NOy, SO2 and total backscatter along the flight track. These chemical constituents and their spatial structure will be analyzed from both the aircraft and air quality models.
Related Categories
Below is a list of categories that this project belongs to.
|
|
| Page Updated/Reviewed: 08/11/2008 1:54 PM |
|
© 2005 - 2008 Texas Environmental Research Consortium
|
